Tool for boring hubs



To allwhomfz't may/Sempere: 1 i v1 1Be` it Y@ known 1` that gwe, QH. C.

HJlKTING, ofdHagerstwn, in the county of ,Washington,State`off"`Maryland, have in. vented i a "new and ""useful Apparatus?` for4 Boring"Out @Hubs for `Wagons andVCarragefs for;` the Receptionl lof Boxes, Both Narrow and ThroughfBoxes; and we `do ,i hereby declarethat thefollowing is" a full, p clear, and exact description of the`construction and operation i of the same, reference be-V inghad to the annexeddrawing, makinga `part offthis specification; l n Construction; `The `knife is 7 incheslong, `SLofan inch wide, with" back fg of an inch thick,with aregular bevel commencing of.` '1an inch from` the "back, f with a lipon the i lowerfend to cutoff, the rcut,`at the `bottom l `oflithe shavingmade fby the knife. The lslide (woodyis incheslongyldivided as follows: The" end that jhasfthe screw cut f `upon,\is 9 incheslongfl inches in diameter, the fiat part is2125` inches long, 3 inches "wide, l 2 "inches thicklwhere the knife and bolt `mortifsespass throughythen 1% inchesthick "infor Sinches, `with arecess Lof gliinchto` givek strength to the backfofl the rear cross head. f Upon the face side,`there is a grooveon each y `corner to admit of aiiange left in `thenior ftise in the rear "cross head, and totheffleft side, there is a hand hold o-f Pincheslong, turned to operatethe apparatnswith; the mortise fortheknife is put squarelthrough 1 the side upon an angle of 40 degrees, upon y )the face side, observing the center line, re- 1 verse `to this mortise isthe `mortise for the bolt, that "holds the knife. The frontcrossV 2 head (wood) is 10"inches long 111# inches "i thick, 2% inchesfwide made of anfelliptic form, from thecenter,iedgewise,` and oval 1ylonythe back` `part-,"where the nut works against, `which Ahasa hole jl'fg inches in diameter, for` the "serew` part of the slide to, n passlthrough; Upon this cross head is fastened,` a friction roller, which hasa ange 1g ofaninchfromfthe slide. The rear cross GARVIN and head `(wood)` is inches long 2% by `2 inches, has a mortise that is `open,`with projections `for "to work inthe groovesin the slide, Upon thislcross head aret-wo friction rollers of cast iron, `with flanges on the `upper. side, which are fastened with bolts, n passing throughthe said cross head.` These `rollersfmay` be removed to the outer" ends of the cross heads to admit of the largest size STATES PATENT OFFICE, AnvINANnJ. n.x`ING,\onnl/leERsrowN, immnnmn-`f i T001. "non :Bonnie Hojas n specifies/nimmt Leaesratenf n412577, dated Aprn 10,1855.

adjusting the apparatus to the hub, are each linches long, with a head uponone end of each rod, with a thread cutwithin 4 inches of theyhead,'with twotaps uponeachlrod, these rods pass through `each `cross head,

isVfasten'ed, with a tap upon each side o-f the cross head, with the two friction rollers fastened upon. p

- `The bolt to fasten the knife, has an angle upon the edge.V aboutLO degrees, while the fasten the knife. yThe wooden nut upon the 2g- ,inches long, the end upon which the flange is, is 2% inchesin` diameter, the flange hold to `feed up the kni for operation."l The stay* uponthe top is made of iron, to adjust the knife to any anglethat may be required,

are. to be let in. n Y,

.Opera-tion: Tolapply theapparatus you lwill rstfbore'lg; inch hole through the hub, then separate cross heads E E by Vturning backzthetaps upon the rods Gr, Gron the outside of the rear cross Vhea-d E and'turning the taps on the insidetoward the front-cross head E, and move theknife A to the center of the hub, that you can adjust the apparatus tosuit the out side of `the hub, by bringing the cross heads E E together and --tight-ening them Vup by the taps upon the out side of the cross head, so as to cause the ianges to form a groove around the outside of the hub, by turning it around the hub some several times before feedin up the knife A, and after the fianges ave upon the inside of the rear cross head, so as to form a j amb, then with the nut I you will feed the knife toward the outside ofthe hub, revolving the apparatus at the same Changing the apparatus from one end to the other, cutting from each end of the hub, to cut through boxes you will throw the knife according to the angle desired or to suit the swell of the box on the outside, adjusting the stay upon the top of the slide,

`29j `inches from Ithe slidein which `the knife back of thebolt-is straight, with a thread. cut `upon the one end, with a tap upon it to end of the Aslide where the `feed isglven, is

is J2! inch thick, leaving 2 inches for a hand using an 'iron wedgeon the back of 'the "knife, onl the face or front side of the ap-` Y paratusfto cuthollow for `through boxes, this wedgeis taken out .when straight boxes hubs." There are two rods (iron)` `for A formed a groove, you will bring up the taps A time until you have the size you desire.

and putting the Wedge at the back of the knife to keep the knife in the angle you may set it to.

References: A, the knife for boring out hubs; B, the slide in Whichthe knife is fastened; C, the mortise, for the reception lof the knife A; D, the bolt, that fastens the A, While in operation, to be firmly secured; E E, cross heads, through which the slide B passes; F F F, the friction rollers'br travelers, fastened upon the cross heads E E, with flanges to form a groove around the hub before the apparatus is put to Work so that t-he knife A, in performing its Work,`

Cannot throw off the apparatus; G, G, the rods and taps, that regulate and fasten the apparatus to the hub, and keep itI secure to its boring, While the apparatus is at Work; H H, astay on the top of the apparatus, to keep the knife A, firm to its bearing, during the operation of boring; I, a Wood nut that feeds the knife A While in operation.

What We claim as our invention and desire-to secure by Letters Patent is- The apparatus for boring Wagon and carriage hubs for reception of boxes, (narrow and through boxes) as herein described, using for that purpose the aforesaid apparatus or any other substantially the same.

HENRY C. GARVIN. JOHN H. KING. Witnesses:

JOHN FRIES, WM. H. HANDEY. 

